Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fc51dc091aa5256…

MALICIOUS

PDF

51.5 KB Created: 2020-08-05 10:21:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a99536b90f09ec93e247dd85b6ba9296 SHA-1: a25f322bffffea4625012598ecc9c5f0b407c5a5 SHA-256: 1fc51dc091aa52562909c2cd15ca119ccdc513b4e6a70d9d5297e8fb871908d4
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass external PDF link farm, with many links pointing to shopify.com, but the primary malicious indicator is a link to the ttraff.ru redirector. This suggests the document is designed to redirect users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted, and the document body is heavily obfuscated, but the presence of the malicious redirector is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=estudio+descriptivo+sampieri+pdf
    • http://files.mrsnishita.com/uploads/1/3/0/9/130969461/64b628850036.pdf
    • http://files.isivirginia.com/uploads/1/3/1/4/131453284/2839bb.pdf
    • http://files.thehoneybeefactory.net/uploads/1/3/1/3/131398401/vonukuzik.pdf
    • https://cdn.shopify.com/s/files/1/0440/9245/7112/files/manual_drip_coffeemaker.pdf
    • https://cdn.shopify.com/s/files/1/0435/5584/8355/files/gifiwebaso.pdf
    • https://cdn.shopify.com/s/files/1/0430/2379/4339/files/mosuduxim.pdf
    • https://cdn.shopify.com/s/files/1/0429/4659/2924/files/55361511644.pdf
    • https://cdn.shopify.com/s/files/1/0437/2119/5688/files/sesopite.pdf
    • https://cdn.shopify.com/s/files/1/0431/0895/8362/files/wutanemozatiga.pdf
    • https://cdn.shopify.com/s/files/1/0436/0726/1341/files/blackfathom_deeps_map.pdf
    • https://cdn.shopify.com/s/files/1/0438/9247/4011/files/39478321081.pdf
    • https://cdn.shopify.com/s/files/1/0430/2834/9079/files/sokesirakuzur.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/6735074847.pdf
    • https://cdn.shopify.com/s/files/1/0437/8702/6581/files/wowirotubetug.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007cb5.bin
c737b5a659cd5eb55b40af5a72600f64ff6cca4f6315de5b85c189ed5fdd75ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CB5 5060 bytes
font_01_sfnt_off00008df4.bin
ea04232922280fd66a18bcfe0e6b6928d287d2498ad7543047449f8400b0b397		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8DF4 10916 bytes
font_02_sfnt_off0000b18d.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB18D 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.